An interface to the GNU libplot library.
libplot is a part of the GNU plotutils package. It is a 2-D vector graphics library capable of exporting to many file formats, both vector and raster.
The Chicken plot library provides a Scheme interface to a large subset of the libplot procedures. This interface follows closely the libplot API, so the main reference is the plotutils manual.
In libplot, function names are of the form pl_function_r. The Scheme corresponding function name is function.
Below is a list of procedures that are included in this egg, along with brief descriptions. This egg has been tested with plotuils version 2.6.
(use plot) (define (ccurve plotter maxorder dx dy order) (if (>= order maxorder) (fcontrel plotter dx dy) (begin (ccurve plotter maxorder (* 0.5 (- dx dy)) (* 0.5 (+ dx dy)) (+ order 1)) (ccurve plotter maxorder (* 0.5 (+ dy dx)) (* 0.5 (- dy dx)) (+ order 1))) )) (define (simple-test plotter max-order) (openpl plotter) (fspace plotter 0. 0. 1000. 1000.) (flinewidth plotter 0.25 ) (pencolorname plotter "blue" ) (erase plotter ) (fmove plotter 600. 300. ) (ccurve plotter max-order 0. 400. 0 ) (closepl plotter) )
(define (main) (print "libplot version: " (libplot-version)) (let ((plotter (make-plotter (PNG) (open-output-file "testplot.png") (list (PAGESIZE "A4") (INTERLACE #t) (X_AUTO_FLUSH #f) (META_PORTABLE #t))))) (simple-test plotter 5) (delete-plotter plotter)))
- Added matchable and datatype as dependencies (thanks to Mario Domenech Goulart)
- Initial release
Copyright 2011 Ivan Raikov.
Based on the Ocamlplot library by Olivier Andrieu. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. A full copy of the GPL license can be found at <http://www.gnu.org/licenses/>.